package com.yang.lang3;

import org.apache.commons.lang3.StringUtils;
import org.junit.Test;

public class StringUtilsExp {
	
	@Test
	public void test1(){
		System.out.println(StringUtils.defaultIfEmpty("", "aa"));//aa
		System.out.println(StringUtils.defaultString(null, "bb"));//bb
		System.out.println(StringUtils.leftPad("aa", 5,'0'));//000aa
	}
}
